About this number
(423) 578-0004 is a wireless/mobile based telephone number operated by New Cingular Wireless Pcs, LLC and is located in zip code 37660 in the city of Kingsport, Tennessee, which is in Sullivan County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 423, a Network Numbering Exchange (NXX - also known as a prefix) of 578 and a subscriber number of 0004. It has an Operating Company Number (OCN) of 6214. A Common Language Location Identifier (CLLI) of JHCYTNXCXYX. As well as a Local access and transport area (LATA) of 956. It was first assigned for usage on 08/02/2007. Zip code 37660 has a population of 40,038 as of the 2010 census.